package com.huangbc.internalcommon.util;

import com.auth0.jwt.JWT;
import com.auth0.jwt.JWTCreator;
import com.auth0.jwt.algorithms.Algorithm;
import com.auth0.jwt.interfaces.Claim;
import com.auth0.jwt.interfaces.DecodedJWT;
import com.huangbc.internalcommon.dto.TokenResult;

import java.util.Calendar;
import java.util.Date;
import java.util.HashMap;
import java.util.Map;

/**
 * @Author: Derek.huang on 2024/3/28 12:50.
 */
public class JwtUtils {

    // 盐
    private static final String SIGN = "CPFmsb!@#$$";

    private static final String JWT_KEY_PHONE = "phone";

    // 乘客是1，司机是2
    private static final String JWT_KEY_IDENTITY = "identity";

    private static final String JWT_TOKEN_TYPE = "tokenType";

    private static final String JWT_TOKEN_TIME = "tokenTime";



    // 生成token
    public static String generatorToken(String phone , String identity , String tokenType) {
        Map<String,String> map = new HashMap<>();
        map.put(JWT_KEY_PHONE,phone);
        map.put(JWT_KEY_IDENTITY, identity);
        map.put(JWT_TOKEN_TYPE, tokenType);


        // token过期时间
        Calendar calendar = Calendar.getInstance();
        calendar.add(Calendar.DATE, 180);
        Date date = calendar.getTime();
        map.put(JWT_TOKEN_TIME, Calendar.getInstance().getTime().toString());

        JWTCreator.Builder builder = JWT.create();
        // 整合map
        map.forEach(
                (k, v) -> {
                    builder.withClaim(k, v);
                }
        );
        // 整合过期时间
        builder.withExpiresAt(date);

        // 生成 token
        String sign = builder.sign(Algorithm.HMAC256(SIGN));

        return sign;
    }


    // 解析token
    // 解析token
    public static TokenResult parseToken(String token){
        DecodedJWT verify = JWT.require(Algorithm.HMAC256(SIGN)).build().verify(token);
        String phone = verify.getClaim(JWT_KEY_PHONE).asString();
        String identity = verify.getClaim(JWT_KEY_IDENTITY).asString();

        TokenResult tokenResult = new TokenResult();
        tokenResult.setPhone(phone);
        tokenResult.setIdentity(identity);
        return tokenResult;

    }

    /**
     * 校验token，主要判断token是否异常
     * @param token
     * @return
     */
    public static TokenResult checkToken(String token){
        TokenResult tokenResult = null;
        try {
            tokenResult = JwtUtils.parseToken(token);
        }catch (Exception e){

        }
        return tokenResult;
    }


    public static void main(String[] args) {

        String s = generatorToken("13910733521" , "1" , "accessToken");
        System.out.println("生成的token："+s);
        System.out.println("解析-----------------");
        TokenResult tokenResult = parseToken(s);
        System.out.println("手机号："+tokenResult.getPhone());
        System.out.println("身份："+tokenResult.getIdentity());
    }
}
